Thanks tef y2k but I finally figured out how to do it! And for anyone else who doesn`t know how but would like to know, here is what I did.
After ripping the 2 dvds with dvd decrypter, I used the "re-author" feature in dvd shrink, to open the 1st ripped disc. Then using the "start/end" feature, I selected several chapters of disc 1 (approximately 1/2 of the movie), and encoded those chapters to a directory on my hard drive. I then selected the remaining chapters of disc 1 and encoded those chapters to a 2nd directory on my hard drive. I then opened the 2nd ripped disc and again using the "re-author" feature, encoded all the disc 2 chapters to a 3rd
directory on my hard drive. After the entire movie was encoded, I opened the 2nd encoded file (last chapters of disc 1), then opened the disc 2 chapters in the same window and encoded those two files to a 4th directory on my hard drive, thus combining the two files. I burned the contents of file 1 to a blank dvd, then burned the contents of file 4 to a blank dvd. By splitting the movie up equally, I was able to keep the compression of both dvds to a minimum.
I hope this helps anyone who encounters this problem, because I`ve been helped in this forum numerous times!